92 lines
2.8 KiB
JavaScript
92 lines
2.8 KiB
JavaScript
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module.exports = {
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roll: function (req) {
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if (typeof req !== "string") {
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return "Mollux! You don goofed!"
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}
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// Splits request into segments. Example "3d6+3+5d2" => ["3d6", "+3", "+5d2"]
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var segments = req.replace(/\s/g, '').match(/([+\-]?\d{0,}d\d{1,})|([+\-*/]\d{1,})/gi)
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var message = '';
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var i = -1
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var results = []
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var curResult = 0
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var curMod = 1
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segments.forEach(e => {
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if (e.match(/([+\-]?\d{0,}d\d{1,})/gi)) { // xdy
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// if not first add previous result and resetting curResult
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if (i >= 0) {
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curResult *= curMod
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results[i] = curResult
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curResult = 0
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}
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i++;
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// Set modifier for dice group
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curMod = (e.substring(0, 1) === '-') ? -1 : 1
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// dice[0] = number of rolls, dice[1] = sides of dice rolled
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var dice = e.replace(/[+\-]?/, '').split(/d/i)
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var rolls = []
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for (var l = 0; l < parseInt(dice[0] === '' ? 1 : dice[0]); l++) {
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rolls[l] = rollDice(dice[1])
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curResult += rolls[l]
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}
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// add result to message
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var sign = e.match(/[+\-]/)
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message += ((sign === null) ? ' ' : ' ' + sign) + '[' + rolls.toString() + ']'
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} else if (e.match(/([+\-*/]\d{1,})/gi)) { // Modifier
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switch (e.substring(0, 1)) {
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case '+':
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curResult += parseInt(e.substring(1))
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break;
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case '-':
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curResult -= parseInt(e.substring(1))
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break;
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case '*':
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case 'x':
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curResult *= parseInt(e.substring(1))
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break;
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case '/':
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curResult /= parseInt(e.substring(1))
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break;
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}
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message += e
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}
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})
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curResult *= curMod
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results[i] = curResult
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// Adding the sum to the message
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var sum = 0
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if (results.length > 1){
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sum = results.reduce(getSum)
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} else if (results.length === 1){
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sum = results[0]
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}
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message += ' = ' + sum
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console.log(results.toString())
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console.log(i)
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console.log(sum)
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return message
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}
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}
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/**
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* Roll one dice, returns result
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* @param {int} dice Amount of sides od dice rolled
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*/
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function rollDice(dice) {
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return parseInt((Math.random() * dice) + 1)
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}
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function getSum(total, num) {
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return total + num
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} |